Reagents, C

Chromatography Reagents, Reagents, C

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Reagents, C Chromatography Reagents

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  • Nucleosil® 4000-7

    GFS Chemicals

    Unmodified, spherical silica. 4000 angstrom pore size, 7 micron particle size.

  • LC Multiresidue Pesticide Standard #7 (7 components)

    Restek

    Accurately detect and quantify pesticides of global food safety concern in a wide range of fruits, vegetables, and other commodities by LC-MS/MS. Formulated and grouped for maximum long-term stability* and well-balanced chromatographic performance. Quantitatively tested to confirm…

  • GFSELECT™ Silica, 60A, 120-200 Micron

    GFS Chemicals

    Irregular, chromatographic grade. 60 angstrom pore size, 70-120 mesh (120-200 micron), particle size.

  • Standard TLC Silica with Binder & Indicator

    GFS Chemicals

    Irregular silica for TLC applications. 60 angstrom pore size, -400 mesh (5-25 micron) particle size. Surface area 500 m2/g. With gypsum binder and fluorescent indicator (F-254). M-N # 816320.

  • BSTFA Silylation Reagent

    Thermo Scientific

    Improve GC analysis with Thermo Scientific™ BSTFA Silylation Reagent. The highly volatile byproducts mono(trimethylsilyl)trifluoroacetamide (BSTFA) and trifluoroacetamide elute with the solvent front to ensure excellent chromatographic separations. This silylation reagent reacts with a wide…

  • Standard TLC Silica

    GFS Chemicals

    Irregular silica for TLC applications. 60 angstrom pore size, -400 mesh (5-25 micron) particle size. Surface area 500 m2/g. M-N # 816330.

  • Silica Gel 60 GF254

    MilliporeSigma

    Standardized sorbents ensure reliable results every time. EMD Millipore’s broad spectrum meets all kinds of needs. In TLC, silica gel 60 sorbent is considered the most versatile. Our assortment of silica gel 60 features different grades with particle sizes ranging from 5-40 µm: silica with a gypsum…

  • BAC Resolution Control Standard n-P (6 components)

    Restek

    Use to verify the retention time for each compound normally included in a blood alcohol test, and to verify that the compounds are resolved from and do not interfere with one another. Includes 1-propanol internal standard. Intended for qualitative use only. Compound List Acetaldehyde…

  • GFSELECT™/TLC Silica with Gypsum Binder

    GFS Chemicals

    Irregular silica for TLC applications. 60 angstrom pore size, -600 mesh (5-15 micron) particle size. Surface area 500 m2/g. With gypsum binder.

  • Cellulose, MN Grade 301HR, Acid Washed, De-Fatted

    GFS Chemicals

    Adsorbent for low pressure column chromatography.

  • Nucleosil® 50-5

    GFS Chemicals

    Unmodified, spherical silica. 50 angstrom pore size, 5 micron particle size.

  • GFSELECT™ Silica, 60A, 5-15 Micron (-600 Mesh)

    GFS Chemicals

    Irregular, chromatographic grade. 60 angstrom pore size, -600 mesh (5-15 micron) particle size.

  • Silica, 60A, 37-63 Micron (230-400 Mesh)

    GFS Chemicals

    Irregular, chromatographic grade. 60 angstrom pore size, standard particle size distribution of 230-400 mesh (37-63 micron). Surface area 500 m2/g. M-N # 815380.

  • Bentazon

    Restek

    Compound List Bentazon (25057-89-0)

  • Florisil®, 60-100 Mesh

    GFS Chemicals

    Suitable for use in Chromatography of pesticide residues. Magnesium Silicate Activated at 675 C.

  • Exempted Drug of Abuse Reference Standards

    Restek

    Note: Stressed shipping studies indicate that this product remains stable after being continuously exposed to an elevated temperature of 40°C for 7 days. Ground freight is the default shipping method for this product; expedited methods are available upon request.

  • Free Fatty Acids Test Standard (6 components)

    Restek

    Compound List (C4:0) Butyric acid (107-92-6) Acetic acid (64-19-7) Isobutyric acid (79-31-2) Isovaleric acid (503-74-2) Propionic acid (79-09-4) Valeric acid (109-52-4)

  • MTBSTFA and MTBSTFA+1% TBDMCS

    Thermo Scientific

    MTBSTFA and MTBSTFA+1% TBDMCS offer stable TBDMS (tert-butyldimethylsilyl) derivatization. Derivatizes hydroxyl, carboxyl, thiol and primary and secondary amines Typical yields are >96% Provides TBDMS ethers that are 104 times more stable to hydrolysis than TMS ethers Reaction byproducts…

  • Nucleosil® 50-10

    GFS Chemicals

    Unmodified, spherical silica. 50 angstrom pore size, 10 micron particle size.

  • 4,4'-DDE

    Restek

    Compound List 4,4'-DDE (72-55-9)

  • Standard TLC Silica with Fluorescent Indicator

    GFS Chemicals

    Irregular silica for TLC applications. 60 angstrom pore size, -400 mesh (5-25 micron) particle size. Surface area 500 m2/g. With fluorescent indicator (F-254). M-N # 816340.

  • Molecular Sieve, 5A 8-12 Mesh Beads

    GFS Chemicals

    CAS#: 1344-02-1

  • Polystyrene Beads

    bioWORLD

  • MSTFA and MSTFA 1% TMCS

    Thermo Scientific

    Offers maximum volatility Trimethylsilyl donor strength comparable to BSA and BSTFA Reacts to replace labile hydrogens on a wide range of polar compounds with a Si(CH3)3 group Used to prepare volatile and thermally stable derivatives for GC and MS Volatile byproduct,…

  • Molecular Sieve, 13X 8-12 Mesh Beads

    GFS Chemicals

    CAS#: 1344-00-9

  • Melamine Stock Standard

    Restek

    Compound List Melamine (108-78-1)

  • Royer® Palladium Catalyst Powder, 3% Pd on Polyethylenimine/Sio2

    GFS Chemicals

    Catalyst for hydrogenation 40-200 mesh.

  • Royer® Palladium Catalyst Beads, 1% Pd on Polyethylenimine/Sio2

    GFS Chemicals

    Catalyst for hydrogenation 20-40 mesh.

  • Silica Gel Beads, 10-18 Mesh, Indicating, Grade 47

    GFS Chemicals

    SiO2 CAS#: 7631-86-9 F.W.: 60.09 Blue indicating desiccant.

  • B/N Surrogate Mix (4/89 SOW) (3 components)

    Restek

    Compound List 2-Fluorobiphenyl (321-60-8) Nitrobenzene-d5 (4165-60-0) p-Terphenyl-d14 (1718-51-0)

  • Molecular Sieve, 3A 8-12 Mesh Beads

    GFS Chemicals

    CAS#: 12736-96-8

  • Molecular Sieve, 4A 8-12 Mesh Beads

    GFS Chemicals

    CAS#: 1344-00-9

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